Pipette

Each group labels three test tubes with SS and our group names, which ours was 5 dots, and were told to put 4ml of stock starch in each test tub with a pipette. The next step was to get each beaker of 1, 5, and 10 percent concentration of amylase and put 4ml in three other beakers labeled with their respected concentrations. After that was completed our group put all 6 beakers in a water bath that was at…

Antisera evaluation: bacterial agglutination. Introduction and Aim: Agglutination is coalescing of antigen bearing cells, microorganisms or particles in the presence of specific antibodies, in a suspension. Antiserum is a serum containing antibodies which are specific for one or multiple antigens. Direct agglutination, a process by which antigens detect and bind directly to specific antibodies in serum against a microbe. Hence, the aim of this experiment is to qualitatively and…

the laboratory for future labs (i.e. pipettes, glassware, etc). This experiment will also help with practicing and learning how to calculate error in an experiment when using lab equipment that involves measurement, since measurement is not always precise. A-2. Tell the reader the subject of the experiment and what the key experimental variables are. • The subject of the experiment is to practice and learn how to use some of the laboratory equipment (i.e. pipette, graduated cylinder, etc) and…

In exercise 1, experiment A, the students will need a microscope slide, a coverslip, a compound microscope, carmine powder, distilled water, and a pipette. The students will begin by placing a drop of water on the microscope slide. Then they will add carmine powder onto the slide. Then they will place a coverslip on top of the solution. This will aid in mixing the solution. Then the students will observe the movement of the carmine particles on low power and high power. In exercise 1,…

The first was determinging the carbonate hardness. I started the experiment with washing the 100 cm3 pipette 2 times with a small amount of the test water. Then I washed the conical flask with distilled water and pipetted into the conical flask 100 cm3 of the test water. After that I added 3 drops of indicator mo or mr. The next step was preparing the burette…

1.0 Introduction 4-hydroxy-3methbenzaldehyde is the scientific name for Vanillin. What is vanillin? It is a substance that adds flavor to the special taste and smell in food. It is extracted from high quality beans (1). A specific solvent named ethanol can be used to extract vanillin. There are two types of vanillin namely natural vanillin and artificial vanillin. There is artificial vanillin in the market because natural vanillin is costly. Before a chemical experiment or process is carried out…

varying tubes are needed, the product from the previous lab, pipette, ice, heat block, SOC, and incubator. For experiment 8 a agarose gel is needed along with ice, pipette, toothpick, centrifuge, vortex, buffer P1, buffer P2, buffer N3, buffer PE, and sterile water. For experiment 9 a NanoDrop machine is needed, a pipette, buffer, and incubator. Lastly for experiment 10 the plasmid DNA from the previous experiment is required along with a pipette; a primer provided by the TA, and a master mix…

has been turned inside out. The rod was pulled out. The outside of the inverted intestine was rinsed with Tyrode’s. A plastic pipette, which was filled with Tyrode’s, was slipped into the opposite end of the segment and held with a single string knot. The segment was filled with solution and the pipette was removed from the end of the intestine. At the same time of the pipette removal, the loop of the thread was secured to seal the sac. The knot was secured with another knot. The sac was handled…

Background: Water is used for many activities and by many people, but the water we have is unchanging. The amount of water will never be any more or any less water than is on the Earth currently. Most water on earth is found in oceans and is salty, while most water that is used by human needs to be freshwater, whether it be for drinking, agriculture or cooking. Our freshwater sources are mainly frozen in ice caps and glaciers, but these sources are not always accessible by people depending on…

Introduction Brine shrimp are creatures that are known to thrive in harsher conditions, so they make an ideal research subject because of their durability. They are a native species of the Great Salt Lake, proving that they can withstand a high water salinity of up to 20 %+ ( https://microbewiki.kenyon.edu/index.php/Salt_Lake). Brine shrimp range from around 8-10 mm, including the tail. They have nineteen body segments, 11 of them include twenty-two legs total. Brine shrimp have an exoskeleton…